From 8c9ff300dcb30e8a09f518f86844963619eeddd5 Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Sun, 15 Jun 2025 18:59:59 -0400
Subject: [PATCH] fix sketch centering

---
 src2/mesh/api.js    | 7 +++++--
 src2/mesh/sketch.js | 5 +++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src2/mesh/api.js b/src2/mesh/api.js
index ea8355a7..61400ccf 100644
--- a/src2/mesh/api.js
+++ b/src2/mesh/api.js
@@ -293,7 +293,7 @@ const selection = {
     },
 
     focus() {
-        api.focus(selection.list());
+        selection.count() && api.focus(selection.list());
     },
 
     bounds() {
@@ -1537,7 +1537,10 @@ const api = {
         if (isNaN(center.x * center.y * center.z)) {
             center = { x: 0, y: 0, z: 0 };
         }
-        let { normal } = Array.isArray(object) ? object[0].object : object.object;
+        let { normal } = Array.isArray(object) && object.length ?
+            object[0].object :
+            object.object ||
+            { };
         let left, up;
         if (normal) {
             let { x, y, z } = normal;
diff --git a/src2/mesh/sketch.js b/src2/mesh/sketch.js
index 42fdd408..604d8fe3 100644
--- a/src2/mesh/sketch.js
+++ b/src2/mesh/sketch.js
@@ -118,6 +118,11 @@ class MeshSketch extends meshObject {
         return this.group;
     }
 
+    get bounds() {
+        this.plane.geometry.computeBoundingBox();
+        return this.plane.geometry.boundingBox.clone();
+    }
+
     get meshes() {
         return this.group.children.filter(c => {
             return c.sketch || (c.sketch_item && c.sketch_item.selected) ? c : undefined